281
Plant mutation breeding for crop improvement : International Symposium on the Contribution of Plant Mutation Breeding to Crop Improvement: proceedings. vol 0001 : Wien, 18.06.90-22.06.90
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282
Nutrition and agricultural development: significanc and potential for the optics : Nutrition and agriculturel and economic development in the tropics: symposium : Biological symposium: proceedings of the international symposium 0014 : Guatemala-City, 02.12.1974-06.12.1974.
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283
Case studies presented by OECD member countries and reports on selected policy issues : Peri urban agriculture in the context of regional development: symposium : Paris, 14.10.1977-18.10.1977.
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284
New agricultural crops : American Association for the Advancement of Science: annual meeting 1978 : Washington, DC, 12.02.78-17.02.78 /
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285
World forestry congress. 8 : International MAB IUFRO workshop on tropical rainforest ecosystems research. 2 : transactions : Jakarta, 21.10.78-25.10.78 /
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286
Energy conservation and use of renewable energies in the bio industries : Energy conservation and the use of solar and other renewable energies in agriculture, horticulture and fishculture: international seminar : London, 15.09.80-19.09.80.
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287
Mise au point d' une methode d' evalutation des techniques douces en agriculture.
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288
Tropical and subtropical agriculture. 2.
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289
Toward the conquest of hunger : Progress report. 1965-66.
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1966
290
Advances in agronomy . 24/
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291
Nutritional improvement of food legumes by breeding : Based on proceedings of a symposium. Rome, 3.-5.7.1972.
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292
Die Kulturpflanze. 18.
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Boehme, H.
1970
293
Die Kulturpflanze. 6.
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294
Die Kulturpflanze. 16.
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Boehme, H.
1968
295
Die Kulturpflanze. 14.
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Danert, S.
1966
296
Die Kulturpflanze. 3.
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297
Freeze drying and advanced food technology /
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298
Nitrogen and phosphorus : food production, waste, and the environment : a report of an interdisciplinary research project /
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299
Crop physiology and cereal breeding : proceedings of a Eucarpia workshop, Wageningen, the Netherlands, 14-16 November 1978 /
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300
Physiological processes limiting plant productivity /
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